ceph/src/boost/tools/quickbook/src/grammar.hpp

   1 /*=============================================================================
   2     Copyright (c) 2002 2004  2006Joel de Guzman
   3     Copyright (c) 2004 Eric Niebler
   4     http://spirit.sourceforge.net/
   5
   6     Use, modification and distribution is subject to the Boost Software
   7     License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   8     http://www.boost.org/LICENSE_1_0.txt)
   9 =============================================================================*/
  10 #if !defined(BOOST_SPIRIT_QUICKBOOK_GRAMMARS_HPP)
  11 #define BOOST_SPIRIT_QUICKBOOK_GRAMMARS_HPP
  12
  13 #include <boost/spirit/include/classic_core.hpp>
  14 #include "fwd.hpp"
  15 #include "iterator.hpp"
  16
  17 namespace quickbook
  18 {
  19     namespace cl = boost::spirit::classic;
  20
  21     // The spirit scanner for explicitly instantiating grammars. This is a
  22     // spirit implementation detail, but since classic is no longer under
  23     // development, it won't change. And spirit 2 won't require such a hack.
  24
  25     typedef cl::scanner<
  26         parse_iterator,
  27         cl::scanner_policies<
  28             cl::iteration_policy,
  29             cl::match_policy,
  30             cl::action_policy> >
  31         scanner;
  32
  33     template <typename Scanner>
  34     struct Scanner_must_be_the_quickbook_scanner_typedef;
  35     template <> struct Scanner_must_be_the_quickbook_scanner_typedef<scanner>
  36     {
  37     };
  38
  39     struct grammar : public cl::grammar<grammar>
  40     {
  41         grammar(cl::rule<scanner> const& start_rule_, char const* /* name */)
  42             : start_rule(start_rule_)
  43         {
  44         }
  45
  46         template <typename Scanner>
  47         struct definition
  48             : Scanner_must_be_the_quickbook_scanner_typedef<Scanner>
  49         {
  50             definition(grammar const& self) : start_rule(self.start_rule) {}
  51             cl::rule<scanner> const& start() const { return start_rule; }
  52             cl::rule<scanner> const& start_rule;
  53         };
  54
  55         cl::rule<scanner> const& start_rule;
  56     };
  57
  58     struct quickbook_grammar
  59     {
  60       public:
  61         struct impl;
  62
  63       private:
  64         boost::scoped_ptr<impl> impl_;
  65
  66       public:
  67         grammar command_line_macro;
  68         grammar inline_phrase;
  69         grammar phrase_start;
  70         grammar block_start;
  71         grammar attribute_template_body;
  72         grammar doc_info;
  73
  74         quickbook_grammar(quickbook::state&);
  75         ~quickbook_grammar();
  76     };
  77 }
  78
  79 #endif